scholarly journals NOTES ON THE CANADA PORCUPINE IN THE MARITIME PROVINCES

1942 ◽  
Vol 18 (4) ◽  
pp. 182-187 ◽  
Author(s):  
W. A. Reeks
Keyword(s):  
New Brunswick ◽  
Large Scale ◽  
The United States ◽  
Control Methods ◽  
Forest Trees ◽  
Maritime Provinces ◽  
Small Areas ◽  
Degree Of Control ◽  
And Control ◽  
Scale Control

The Canada porcupine is discussed mainly from the standpoint of damage and control. The paper is based on the analysis of a questionnaire issued to foresters and forest rangers and is supplemented by data from the literature and some original observations.Feeding on forest trees is extensive in parts of New Brunswick and Nova Scotia but since all of the trees attacked are not crop trees serious damage to the stand does not always follow. Damage is severe in localized areas where the stands are of particular value, as in plantations, experimental areas and around camp sites.The only method of large-scale control ever attempted in the Maritime Provinces has been the bounty system. While the effectiveness of this method has not been carefully studied, it appears from parallel cases in the United States that the bounty system is generally expensive for the degree of control effected. Control methods probably serve best if applied intensively to small areas where the damage is most serious. A method of localized control by den poisoning is discussed.

Use of Chemical and Nonchemical Methods for the Control of Varroa destructor (Acari: Varroidae) and Associated Winter Colony Losses in U.S. Beekeeping Operations

2019 ◽  
Vol 112 (4) ◽  
pp. 1509-1525 ◽  
Author(s):  
Ariela I Haber ◽  
Nathalie A Steinhauer ◽  
Dennis vanEngelsdorp
Keyword(s):  
United States ◽  
Varroa Destructor ◽  
Large Scale ◽  
The United States ◽  
Small Scale ◽  
Control Methods ◽  
Colony Losses ◽  
Potential Control ◽  
Winter Losses ◽  
Varroa Control

Abstract The parasitic mite Varroa destructor (Acari: Varroidae) is a major cause of overwintering honey bee (Apis mellifera) colony losses in the United States, suggesting that beekeepers must control Varroa populations to maintain viable colonies. Beekeepers have access to several chemical varroacides and nonchemical practices to control Varroa populations. However, no studies have examined large-scale patterns in Varroa control methods in the United States. Here we used responses from 4 yr of annual surveys of beekeepers representing all regions and operation sizes across the United States to investigate use of Varroa control methods and winter colony losses associated with use of different methods. We focused on seven varroacide products (amitraz, coumaphos, fluvalinate, hop oil, oxalic acid, formic acid, and thymol) and six nonchemical practices (drone brood removal, small-cell comb, screened bottom boards, powdered sugar, mite-resistant bees, and splitting colonies) suggested to aid in Varroa control. We found that nearly all large-scale beekeepers used at least one varroacide, whereas small-scale beekeepers were more likely to use only nonchemical practices or not use any Varroa control. Use of varroacides was consistently associated with the lowest winter losses, with amitraz being associated with lower losses than any other varroacide product. Among nonchemical practices, splitting colonies was associated with the lowest winter losses, although losses associated with sole use of nonchemical practices were high overall. Our results suggest potential control methods that are effective or preferred by beekeepers and should therefore inform experiments that directly test the efficacy of different control methods. This will allow beekeepers to incorporate Varroa control methods into management plans that improve the overwintering success of their colonies.

The Habits and control of the Red Locust in outbreak Areas and elsewhere

1947 ◽  
Vol 37 (3) ◽  
pp. 331-379 ◽  
Author(s):  
A. P. G. Michelmore
Keyword(s):  
Special Reference ◽  
Large Scale ◽  
Social Conditions ◽  
Control Methods ◽  
Relative Efficacy ◽  
Red Locust ◽  
Ecological Economic ◽  
Outbreak Area ◽  
Outbreak Areas ◽  
And Control

The best way of preventing locust outbreaks is to control them at their source. After a description of those habits of the Red Locust that have a direct bearing on control, an account is given of some of the results of three years' experience of control of this species in an outbreak area. The methods used in Rukwa are described in detail, and attention is drawn to their relative efficacy, advantages and difficulties. A number of other methods are also referred to and their values discussed. Control methods are considered with special reference to conditions in Rukwa and other outbreak areas, and in relation to large scale campaigns against large outbreaks. Conclusions on the relative values of the various methods are summarised below. These values depend both on the habits of the locusts and on the ecological, economic and social conditions of a country in which a campaign is to be waged. It must not be assumed that conclusions about control methods reached with one locust or in one country necessarily apply to another locust or another country.

Crowdsourcing for large-scale mosquito (Diptera: Culicidae) sampling

2014 ◽  
Vol 147 (1) ◽  
pp. 118-123 ◽  
Author(s):  
Elin C. Maki ◽  
Lee W. Cohnstaedt
Keyword(s):  
Large Scale ◽  
Mosquito Control ◽  
Mosquito Species ◽  
Local Level ◽  
The United States ◽  
Mosquito Vector ◽  
Culex Tarsalis ◽  
Aedes Vexans ◽  
Control Programmes ◽  
And Control

AbstractSampling a cosmopolitan mosquito (Diptera: Culicidae) species throughout its range is logistically challenging and extremely resource intensive. Mosquito control programmes and regional networks operate at the local level and often conduct sampling activities across much of North America. A method for large-scale sampling of two mosquito species using crowdsourcing to network with these local and regional programmes is described. A total of 961 mosquito vector and control districts, health departments, and individual collectors across the United States of America and Canada were contacted in 2011 and 2012 of which 9% positively responded by sending mosquitoes. In total, 1101 unique population samples of Aedes vexans (Meigen) and Culex tarsalis Coquillett were collected throughout their range in these two countries. Aedes vexans outgroup samples were also submitted from Europe and Asia. This is the largest crowd-sourced collection of samples to date.

scholarly journals A Syndromic Surveillance Tool to Detect Anomalous Clusters of COVID-19 Symptoms in the United States

2020 ◽  
Author(s):  
Amparo Güemes ◽  
Soumyajit Ray ◽  
Khaled Aboumerhi ◽  
Michael Richard Desjardins ◽  
Anton Kvit ◽  
...  
Keyword(s):  
Correlation Analysis ◽  
Syndromic Surveillance ◽  
Large Scale ◽  
Cross Correlation ◽  
Warning System ◽  
The United States ◽  
Johns Hopkins University ◽  
Cross Correlation Analysis ◽  
Spatio Temporal ◽  
And Control

Coronavirus SARS-COV-2 infections continue to spread across the world, yet effective large-scale disease detection and prediction remain limited. COVID Control: A Johns Hopkins University Study, is a novel syndromic surveillance approach, which collects body temperature and COVID-like illness (CLI) symptoms across the US using a smartphone app and applies spatio-temporal clustering techniques and cross-correlation analysis to create maps of abnormal symptomatology incidence that are made publicly available. The results of the cross-correlation analysis identify optimal temporal lags between symptoms and a range of COVID-19 outcomes, with new taste/smell loss showing the highest correlations. We also identified temporal clusters of change in taste/smell entries and confirmed COVID-19 incidence in Baltimore City and County. Further, we utilized an extended simulated dataset to showcase our analytics in Maryland. The resulting clusters can serve as indicators of emerging COVID-19 outbreaks, and support syndromic surveillance as an early warning system for disease prevention and control.

scholarly journals Alethopteris and Neuralethopteris from the lower Westphalian (Middle Pennsylvanian) of Nova Scotia and New Brunswick, Maritime Provinces, Canada

2020 ◽  
Vol 56 ◽  
pp. 111-145
Author(s):  
Carmen Álvarez-Vázquez
Keyword(s):  
United States ◽  
Nova Scotia ◽  
New Brunswick ◽  
Western Europe ◽  
The United States ◽  
Maritime Provinces ◽  
Eastern Canada ◽  
Systematic Revision ◽  
Insufficient Attention ◽  
The North

A systematic revision of Alethopteris and Neuralethopteris from upper Namurian and lower Westphalian (Middle Pennsylvanian) strata of Nova Scotia and New Brunswick, eastern Canada, has demonstrated the presence of eight species: Alethopteris bertrandii, Alethopteris decurrens, Alethopteris cf. havlenae, Alethopteris urophylla, Alethopteris cf. valida, Neuralethopteris pocahontas, Neuralethopteris schlehanii and Neuralethopteris smithsii. Restudy of the Canadian material has led to new illustrations, observations and refined descriptions of these species. Detailed synonymies focus on records from Canada and the United States. As with other groups reviewed in earlier articles in this series, it is clear that insufficient attention has been paid to material reposited in Canadian institutions in the European literature. The present study emphasizes the similarity of the North American flora with that of western Europe, especially through the synonymies.

scholarly journals State-level needs for social distancing and contact tracing to contain COVID-19 in the United States 

2020 ◽  
Author(s):  
Weihsueh A. Chiu ◽  
Rebecca Fischer ◽  
Martial L. Ndeffo-Mbah
Keyword(s):  
Large Scale ◽  
District Of Columbia ◽  
State Level ◽  
The United States ◽  
Contact Tracing ◽  
Social Distancing ◽  
Epidemic Curve ◽  
Dynamics And Control ◽  
And Control ◽  
The Impact

Abstract Starting in mid-May 2020, many US states began relaxing social distancing measures that were put in place to mitigate the spread of COVID-19. To evaluate the impact of relaxation of restrictions on COVID-19 dynamics and control, we developed a transmission dynamic model and calibrated it to US state-level COVID-19 cases and deaths. We used this model to evaluate the impact of social distancing, testing and contact tracing on the COVID-19 epidemic in each state. As of July 22, 2020, we found only three states were on track to curtail their epidemic curve. Thirty-nine states and the District of Columbia may have to double their testing and/or tracing rates and/or rolling back reopening by 25%, while eight states require an even greater measure of combined testing, tracing, and distancing. Increased testing and contact tracing capacity is paramount for mitigating the recent large-scale increases in U.S. cases and deaths.

Observations Concerning the “Red Paint Culture”

1941 ◽  
Vol 7 (2Part1) ◽  
pp. 156-161 ◽  
Author(s):  
Wendell S. Hadlock
Keyword(s):  
United States ◽  
North America ◽  
Great Lakes ◽  
New Brunswick ◽  
New England ◽  
The United States ◽  
Maritime Provinces ◽  
The People ◽  
Saint Lawrence River ◽  
Ancient People

For many years the people of Maine, parts of New England, and the Maritime Provinces have been told that an ancient group of Indians lived in the northeastern part of the United States and later moved into New Brunswick and Nova Scotia. These ancient people have been called the Pre-Algonquian Group, The Red Paint People of Maine, and the Beothuk of Newfoundland, by various archaeologists who have excavated their graves.These archaeologists have come to the conclusion that the graves represent a very old group of Indians, but they have not agreed on who they were, where they came from, or where they went. Mr. Charles C. Willoughby shows the distribution of the pre-Algonquian culture as covering all that portion of North America east of the Great Lakes, along the Saint Lawrence River and as far south as the tip of New Jersey.

scholarly journals Intestinal Schistosomiasis and Giardiasis Co-Infection in Sub-Saharan Africa: Can a One Health Approach Improve Control of Each Waterborne Parasite Simultaneously?

2020 ◽  
Author(s):  
John Archer ◽  
Lisa O'Halloran ◽  
Hajri Al-Shehri ◽  
Shannan Summers ◽  
Tapan Bhattacharyya ◽  
...  
Keyword(s):  
Disease Surveillance ◽  
Large Scale ◽  
One Health ◽  
Sub Saharan Africa ◽  
Middle Income ◽  
Intestinal Schistosomiasis ◽  
Sub Saharan ◽  
The Many ◽  
And Control ◽  
Scale Control

Both intestinal schistosomiasis and giardiasis are co-endemic throughout many areas of sub-Saharan Africa, significantly impacting the health of millions of children within endemic areas. While giardiasis is not considered a neglected tropical disease, intestinal schistosomiasis is formally grouped within the NTD umbrella and, as such, receives significant advocacy and financial support for large-scale control, annually. Given the many epidemiological similarities between intestinal schistosomiasis and giardiasis, in this review, we critically discuss why disease surveillance and control activities for giardiasis are largely absent within low- and middle-income countries. With advances in new methods of parasite diagnostics and provision of existing anti-parasitic medications, better management of intestinal schistosomiasis and giardiasis co-infection could, not only be better understood but also, more effectively controlled. In this light, we appraise the suitability of a One Health approach for intestinal schistosomiasis, for if adopted more broadly, could also pave a way forward for more inclusive public health actions against giardiasis.

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